- Scientific name: Fumaria officinalis
- Family: Fumariaceae
- Medical Action: Laxative, alterative, cholagogue, hepatic, diuretic, and aperient, a weak tonic, slightly diaphoretic,
- Constituents: Alkaloids, bitter principle, mucilage, fumaric acid, amino acids, resin. The plant contains isoquinoline alkaloids protopine and allocryptopine.
- Parts Used: Leaves
- Other Fumitories: American Fumitory Fumaria Indica, or Codder Indian
Earth smoke, as it is also called, is a wild poppy plant traditionally used as an incense herb with a stimulating effect on liver and gallbladder and as a protection against skin diseases and eczema. The drug fumitory is toxic in high doses.
Fumitory has been known since antiquity and was described in herbals from the Middle Ages. Fumitory is a predominantly Mediterranean genus that once was used medicinally. Traditional preparation involved expressing the juice and evaporating it. It has been used as a laxative and diuretic.
Fumaria species are used in Turkish folk medicine as a blood purifier and an anti-allergic agent.
In traditional medicine, the plant has been used to treat eczema and other dermatologic conditions. It was thought to be good for the eyes, and to remove skin blemishes. In modern times herbalists use it to treat skin diseases, and conjunctivitis; as well as to cleanse the kidneys.
Fumitory has a long history of use in the treatment of skin problems such as eczema and acne. Its action is probably due to a general cleansing mediated via the kidneys and liver. Fumitory may also be used as an eyewash to ease conjunctivitis.
The name is said to be derived either from the fact that its whitish, blue-green colour gives it the appearance of smoke rising from the ground, or, according to Pliny, because the juice of the plant brings on such a flow of tears that the sight becomes dim as with smoke, and hence its reputed use in affections of the eye.
The leaves yield by expression a juice which has medicinal properties. An extract, prepared by evaporating the expressed juice, or a decoction of the leaves, throws out upon its surface a copious saline efflorescence. Fumaric acid was early identified as present, and its isomerism with maleic acid was established later.
The alkaloid Fumarine has been believed to be identical with corydaline, but it differs both in formula and in its reaction to sulphuric and nitric acids. It occurs in colourless, tasteless crystals, freely soluble in chloroform, less so in benzine, still less so in alcohol and ether, sparingly soluble in water.
The “smoky” or “fumy” origin of its name comes from the translucent color of its flowers, giving them the appearance of smoke or of hanging in smoke, and the slightly gray-blue haze color of its foliage, also resembling smoke coming from the ground, especially after morning dew.
The plant was already called fūmus terrae (smoke of the earth) in the early 13th century, and two thousand years ago, Dioscorides wrote in De Materia Medica and Pliny the Elder in Naturalis Historia that rubbing the eyes with the sap or latex of the plant causes tears, like acrid smoke (fūmus) does to the eyes. Continue reading